Who is the Best of the Losers?

I thought it would be interesting to compare the great NFL players who spent their careers on perennially losing teams.

(For you Bear and Viking fans, the definition of perennial is
1. Lasting or active through the year or through many years.
2. a. Lasting an indefinitely long time; enduring.
b. Appearing again and again; recurrent.

One losing season out of the last 15 is NOT perennial!!!!

So, an example of perennial losers would be the Cubs)

Anyway, the first player that comes to mind is Barry Sanders. He is 3rd all time in rushing yards and easily would have passed Payton in his 11th season (Smith passed Payton in 13 years). Yet, the closest he came to the SB was 1991 when the Lions lost the NFC Championship game.

Fran Tarkenton on the Vikings.
Earl Campbell on the former Houston Oilers.
I almost thought of Walter Payton on the Bears, but they won a SB with him.
Jim Kelly of the Bills.
Best I could come up for now.

I also think John Brockington on the Packers in the seventies, and Lynn Dickey in the eighties.
Gerry Ellis too.